Lexmark 4036-304 manual Scan module does not move to the home position, Pcba

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4036-304

Scan module does not move to the home position

	Cause	Relevant	Check	Action
	Cause	Unit	Check	Action
		Unit

	Home	None	Visual check	Connect the
	position			connector.
	sensor board-
	main control
	PCBA
	connection
	failure

	Home	Sensor in the	Tester check	Replace the
	position	flatbed CCD		flatbed CCD
	sensor board	assembly		optical unit.
	failure

	Power supply-	None	Visual check	Connect the
	main control			connector.
	board
	connection
	failure

	Power supply	Power supply	Tester check	Replace the
	fails		(+5V, +24V,	power supply.
			GND)

	Lamp failure	Lamp	Visual check	Replace the
				flatbed CCD
				optical unit.

	Inverter	Inverter	Visual check	Replace the
	failure			flatbed CCD
				optical unit.

	CCD board-	None	Visual check	Connect the
	main scanner			connector.
	board
	connection
	failure

	CCD board	CCD board	Tester check	Replace the
	fails			flatbed CCD
				optical unit.

Problem Solving 2-9

Image 27

Contents X4500 Scanner 4036-304 4036-304 Edition May Table of Contents Index Norme di sicurezza Safety InformationSafety Information Consignes de SécuritéSicherheitshinweise Pautas de SeguridadInformaçõ es de Seguranç a Informació de Seguretat 4036-304 Product Description Service GuidelinesProduct Features Ease of Use OverviewDigital Copier and Full-function Fax Machine Network ScanningDuplex Scanning through the Auto Document Feeder ADF Scanner Product SpecificationsADF Theory of Operation System Description Mechanical OperationFlatbed Operation Auto Document Feeder Operation External View Scanner Mechanism Overview and LocationsInternal Components Abbreviations 4036-304 Error Codes MFD Controller Errors Problem SolvingMFD Error 31 No hard drive Error 51 Not enough Scanner Errors 4036-304 Power does not come on TroubleshootingCCD Pcba Scan module does not move to lock positionPcba Scan module does not move to the home positionReading is not performed Scan module does not move to the flatbed positionLarge jitter Image does not appearReading position deviation Image unclear Frequent paper jam, double feed or skew Strange Sound Generated flatbedStrange sound generated ADF 4036-304 ADF Unit MaintenanceCleaning Cover and Glass Touch ScreenRemovals Parts Replacement Maintenance ToolsCCD Board Screws ADF Snap-in Pad Module Removal and Mounting ADF Cover Removal Document Cover RemovalADF Optical CCD Unit Removal ADF Unit Upper and Lower Unit Removal 4036-304 User Interface Removal 4036-304 4036-304 Upper Housing Removal 4036-304 Flatbed CCD Optical Unit Removal Remove the upper housing. Go to Upper Housing Removal on4036-304 Carriage Motor Assembly Removal Carriage Belt Pulley Assembly RemovalMFD Controller Cage Removal 4036-304 4036-304 4036-304 Remove the component you want from within the MFD cage Main Control Board Removal 4036-304 Main Scanner Board Connector LocationsMFD Controller Cage Low Voltage Power SupplyParts Catalog Assembly 1 Upper Scanner Asm Part Units Description Index Number Assembly 2 Lower Scanner Assembly 2 Lower Scanner Assembly 2 cont. Lower Scanner Assembly 2 cont. Lower Scanner 4036-304 Part Numbers Index4036-304